Dispensing device



DISPENSING vDEVICE-l n i /mun' States,

stars enfant JOEL E. HAWLEY, .OF KANSAS CITY, MISSOURI, AND ARTHUR W. CAPS, 0F TOPEKA, j

KANSAS, ASSIGNORS OF ONE-FOURTH TO WILLIAM JACKSON RILEY, 03F KANSAS CITY, MISSOURI.

DISPENSING- DEITICE.

i f Specification of Letters Patent.

Patented July 4L, 1922..

Application l'ed March 1?-, 1921. Serial No. 453,090.

To all lwhom it 'may concern.'

Be it known that we, J om. E. HAWLEY and ARTHUR W. CAPS, citizens of the United residing at Kansas City and Topeka, in the counties of Jackson and Shawnee, and States of Missouri and Kansas, respectively, have invented certain new and useful Improvements in Dispensing Devices; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the-letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to a device for dispensing a paste from flexible tubes.

The invention particularly contemplates the provision of means whereby the contents of flexible tubes, such as are commonly used as containers for tooth pastes, shaving paste and the like, may be mechanicallyv expelled through the discharge orifice by pro-` the contents may be expelled at a rate under the absolute control of the operator. As one of the features of our invention we prefer to provide means whereby the retrograde movement of the ejector will be opposed, the opposing means preferably' consisting of a tensioning anchor for servinga dual purpose in that it not only opposes the retrograde movement of the expelling means but also controls the compression of the tube exerted by the ejector sothat all of the contents of the tube will be expelled by thetime the ejector has moved to a point adjacent to the discharge opening in the tube.

One embodiment of our invention is illustrated n the accompanying drawings, in which- Fig. 1 is a perspective view of a tube-containing cabinet constructed in accordance with our invention.

Fig. 2 isa perspective view of the cabinet, with the cover `removed showing the ejector as applied.

Fig. 3 is a vertical, longitudinal, sectional view through the cabinet, showing the ejector,'the tensioning anchor and the tube in operative position, and I Fig. 4. is a detail perspective view of the tensioning anchoring means and ejector.

' The cabinet may be of any approved construction but we have shown it as consisting of a back plate 1, side plates 2 and 3 and a cover plate 4f. The back plate 1, together with the side plates 2 and 3, the bottom plate 5 and the latch tongue 6 may all be formed from a single sheet of metal. The cover plate may be provided with a shoulder 7 to be engaged by the latch 6, the lower portion of the cover being provided with the tongue 8 to engage the opening 9 in the bottom plate 5. Such a construction of cabinet presents a symmetrical appearance and constitutes an appropriate casing or protector for the tube and its operating mechanism.

The cabinet is adapted to receive flexible tubes containing cream, paste or plastic material to be dispensed therefrom in an eiiicient manner, the advantage being that the .contents of the' tube are always accessible and liability of annoyance caused by misplacing of the tube is entirely eliminated.

rlhe tube 10, selected for illustrative purposes, is shown as of the conventional metal construction with a closed end 11 and ,a constricted portion or discharge neck 12,

adapted to be closed by a cap 13. The bot-.

tom plate 5 is provided with an opening la intowhich the neck 12 may be introduced so that it will extend below the bottom of the cabinet to render the contents accessiblel which is provided with av collar 20, having a circumferential groove 21 to receive the edges of the slot 16, the collar being'adapted 105 to be inserted through the enlarged portion or opening 22 at the top 4slot 16. The collar 20'extends outside the cabinet and is pro- 25 pressure will be equally distributed across vbar or ro d 26 connected to the sides 2 and 8 of the cabinet adjacent to the floor 5.

The length ofthe web 25 will be at least e ual to the length of the tube 10 so that W en the tube l0 is inserted in the cabinet,

as shown in Figs. 2 and 3, and the operator manually turns the knob 23 so as to rotate the roller in the slots 15 and 16, the closed end 11 of the 'tube will be pinched between the perimeter of the roller and the web so that equal pressure will be exerted throughout the width of the tube, the pressure being insured by the tension of the web on the roller as it is wound about the roller. It will be apparent that since the end of the tube at the initial operation of the ejector. roller 17 will be between the surface of the roller and the taut or tensioned web 25,

the tube as it is pressed at toforce the material at that end of the tube toward the l front or discharge end.

Assuming that the cap 13 is removed and the parts are in the position shown in Fig. 3,

it will be apparent that when the operator-j turns the ejector roller 17, the plastic orL pasty .material in the tube will be forced through the discharge opening or neck 12 by progressively applied pressure from the closed -end toward the discharge end of the tube 10 until all of the material has been expressed therefrom.

. Animportant feature of the invention is the, anchoring and tensioning device for the roller 17, being apparent that as the web' is wound upon the roller with the closed end of the tube winding on the roller with it, the roller will be held in intimate contact with the tube, expressing pressure against the tube upon a slight rotative movement of the roll'er and that any retrograde or unwinding movement-of the roller willl be eliminated on account of the tension' created by the web 25 as it is wound togethe'r'with the tube upon the-'roller 17 A device constructed in accordancewith our invention will provide an efficient means for mechanically discharging or expressing 1. A material expressing device for flexii ble tubes comprising a cabinet, aligning, vertical grooves in the respective side walls thereof, means for supporting a paste con-Y taining tube having an open end and a closed end, a roller in thegroove, means for rotating the roller to wind the closed .end of the tube progressively about the roller to progressively apply pressure from the closed end of the tube toward the front end thereof, and an anchoring means for the roller comprising an anchor and a `exible connection adapted to wind upon the roller co'exten sively with the winding of the tube thereabout.

for supporting a iiexible tube of paste, the

tube having a closed end and anopen end,

means for expressing the contents from the tube, said means comprising a roller vertically guided in said cabinet,Y means for rotating-the roller over,the tube from the closed end toward the open end to progressively apply pressure ,f from the closed end to the open end to express the material within the tube through the open end, and a tensioning and anchoring device for said roller comprisinga fixed member connected to the cabinet and a flexible connection between the fixed member and the roller whereby the flexible connection will wind about tures.

- JOEL E.HAWLEY. ARTHUR W. CAPS. 

